== sanity test 413k: QoS mkdir exclude prefixes ========== 02:16:38 (1788588998)
lmv.lustre-clilmv-ffff8b7b51387800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8b7b51387800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8b7b51387800.qos_exclude_prefixes=_temporary